Itchy Sack

Target remains tapped. Owner may sacrifice 1 island to eliminate Itchy Sack. If target owner controls no islands, assign 1 madness token to target.

If three tokens are acquired, target is moved into graveyard, spreads Itchy Sack to new target under owner's control, and owner takes 3 damage.

Owner may choose to sacrifice half their life instead of taking 3 damage to spread Itchy Sack to any other target.